package com.jinxiangyang.controller;

import com.google.code.kaptcha.Producer;
import com.jinxiangyang.annotation.OperateLog;
import com.jinxiangyang.utils.Base64;
import com.jinxiangyang.utils.config.RedisCache;
import com.jinxiangyang.utils.constants.CacheConstants;
import com.jinxiangyang.utils.constants.Constants;
import com.jinxiangyang.utils.enums.BusinessType;
import com.jinxiangyang.utils.enums.OperatorType;
import com.jinxiangyang.utils.result.AjaxResult;
import com.jinxiangyang.utils.seq.IdUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.FastByteArrayOutputStream;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * @author jinxiangyang
 * @date 2023/8/14 9:53
 * @description TODO
 **/



@RestController
@Api(tags = "验证码接口")
public class CaptchaController {



    @Resource(name = "captchaProducerMath")
    private Producer captchaProducerMath;




    @Autowired
    private RedisCache redisCache;

    /**
     * 生成验证码
     */
    @GetMapping("/captchaImage")
    @ApiOperation("获取验证码")
    public AjaxResult getCode(HttpServletResponse response) throws IOException {
        AjaxResult ajax = AjaxResult.success();
        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + uuid;

        String capStr = null, code = null;
        BufferedImage image = null;
        String capText = captchaProducerMath.createText();
        capStr = capText.substring(0, capText.lastIndexOf("@"));
        code = capText.substring(capText.lastIndexOf("@") + 1);
        redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
        image = captchaProducerMath.createImage(capStr);
        // 转换流信息写出
        FastByteArrayOutputStream os = new FastByteArrayOutputStream();
        try {
            ImageIO.write(image, "jpg", os);
        } catch (IOException e) {
            return AjaxResult.error(e.getMessage());
        }

        ajax.put("uuid", uuid);
        ajax.put("img", Base64.encode(os.toByteArray()));
        return ajax;
    }



}


